/**
 * Display a confirmation dialog if the form has unsaved changes.
 * - If the user confirms, the navigation continues and the changes are lost.
 * - If the user cancels, the navigation is reverted and the changes are kept.
 *
 * We can't use history.block() here because forms have routes, too (for
 * instance TabbedForm), and the confirm dialog would show up when navigating
 * inside the form. So instead of relying on route change detection, we rely
 * on unmount detection. The resulting UI isn't perfect, because when they
 * click the cancel button, users briefly see the page they asked before
 * seeing the form page again. But that's the best we can do.
 *
 * @see history.block()
 */
declare const useWarnWhenUnsavedChanges: (enable: boolean) => void;
export default useWarnWhenUnsavedChanges;